The Drake RP700 receiver protector offers front-end protection necessary in close proximity to high-power transmitters. The solid state circuitry furnished protection to all RF signals even those in the microwave band. The RP700 protects the receiver at all times, even when the receiver is off or tuned to other frequencies. This device is installed in the transmission line between the antenna and the receiver and requires no power. It limits the amount of power allowed to enter the receiver, and yet has very low insertion loss.